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    <title>Document</title>
</head>
<body>
    <script>
        let arr = ['a','b','c'];

        // console.log(arr.includes('a'));//true
        // console.log(arr.includes('d')); //false

       
        // let obj = {
        //         name:"老王",
        //         score:60
        //     };

        // let arr2 = [
        //     obj,
        //     {
        //         name:"小李",
        //         score:70
        //     },
        //     {
        //         name:"小王",
        //         score:80
        //     },
        //     {
        //         name:"小高",
        //         score:90
        //     },
        // ];

        // console.log(arr2.includes(obj));

        
        
       





    </script>
</body>
</html>